EVERCION P & PRINTING

TECHNICAL INFORMATION

14.10.2015

Printing Planning

Designing

Laboratory

Sample Lab Printing

Dye Kitchen

Mold (Şablon)

Department

Printing Machine

PRINTING

Evercion P reactive dyes are designed for cellulose silk printing , giving prints with excellent fastness and brightness.

Evercion P…

What is our advantages ?

Brilliant with full color range

Easy to dissolve with high solubility

Free form insoluble particle

Dust free

Good quality with consistency

Easy wash-off and free from cross staining

Low urea request for most of products

Excellent paste stability

Very good reproducibility

Meet standard fastness requirement

Good for versatile printing and dyeing application

Liquid range available for auto dispensing

Evercion P…

Lower Reactivity provides: outstanding stability in the printing paste

Lower Substantivity provides : no risk of staining and good washing off properties

Evercion P dyes are a future-oriented physical formulation as regards:

productivity

quality

industrial hygiene

environmental safety

Evercion P Dye Range

General Process for Cellulose/Silk printing

Fabric pretreatment Paste prepare Printing Drying

Steaming fixation Washing off Drying

1 • Fabric Pre-setting (180-190°C)

2 • Pretreatmentt

3 • Drying (120-135 °C)

4 • Continious Tumpler Finishing (Unshrinkability)

5 • Sanforizing

6 • Printing

7 • Steaming

8 • Washing

9 • Drying

10 • Sanforizing

Havy Fabrics with EL: CPB Bleaching

Knitted Fabrics with EL: Exhaust Bleaching – OWA (If needed)

Continious+ Jet for knittted fabrics Only HT washing can be problem like; crease mark, pilling and staining problem

The Best Process Flowchart

Fabric Pretreatment

The fabric should be pretreated with thoroughly de-sized to obtain good adsorption. It should also leave the fabric in a neutral or slightly alkaline conditions.

Lycra:

• has an important role in dimensional stability

• gains levelness to the fabric

Yarn and Fabric

Quality Penye

Karde

Compact Ring

Open-end

Vortex

Yarn quality:

• If you have pilling or levelness problem, It may derieve from yarn type

Thickener

Because o the reactive nature of Evercion P dyes thickeners containing free hydroxyl groups cannot be used. Thickeners base on; Sodium alginate and its mixture Synthetic thickener

Should we use wetting agent?

Printing should be done on dry fabric. Wetting agent may cause penetration problem. When it is used and then the fabric dried before printing, the wetting agent molecule may stuck between fibers and it cause low penetration so; it is recommended not to use, but it could be add in PAD mixture.

Which thickeners should we use ?

Low viscosity type alginate is the best option for penetration. Mixing with synthetic thickener will reduce fluidity and penetration

Seaweed

Thickener

Sample Thickener; Medium viscosity alginates……25g/kg Synthetic Thickener…………………10g/kg

Low viscosity alginates; % Solid is high Natural Good levelness But expensive so; Thickeners medium viscosity alginants are used generally mix with synthethic thickeners.

It is important for a thickener; Color efficiency; a thickener shouldn’t react with dye.

Alginates; Low viscosity Medium Viscosity High Viscosity

A synthethic thickener doesn’t like electrolytes;

An addition of electrolytes in Washing bath, it can be reduce its effect and removed from more easily.

Application Recipe

Thickener X Alkali 15-30 g/kg Urea 50-200 g/kg Reduction İnb. 10 g/kg Dyes y Penetration Agent 5 Soft Water Z

Stock Paste :

Alkali: Sodium bicarbonate or a mixture with sodium carbonate

Urea: It depends on the material and fixation way Ex: Urea amount should be increase when viscose printing and fixation under H-T steaming.

Water:

Soft water should be used.

Printing and drying: Fabric should be pre-set and fed into printing machine with proper tension so as to keep the prints maintain original design.

Fixation: The printed fabric are fixed by saturated steaming for 6-12 minutes at 102°C

Printing and drying

Machine Parameters Screen selection The most important factor ‘’open area’’ Higher open area let us get higher penetration

Blade squeegee The highest range: 35-55 mm We suggest: 55 mm blade

Magnet Rod The diameter range: 6-80 mm 35, 40 or 50 mm could be proper

Speed of printing machine The most important factor ‘’open area’’ Higher open area let us get higher penetration Speed changes with other dyeing parameters (fabric, dye, penetration deep etc.)

With Knife

Can be problem with side to side problem

Better penetration

If the pressure is too high it may deform and damage rotary

screen

With Magnetic

Better result listing

Better result with thin designs

Good performance specially for women

dress

Magnetic Rod

Knife inside

Printing machines

Printing and drying

The most useable MESH is 125 (Hole Per Inch). The thinner pattern requires the more hole number.

Machine Parameters Mesh The number of holes (25-195) in 1 inch.

Steaming

The fabrics shouldn’t touch each other to improve stamping problems.

The fabrics should be dryed smoothly.

Saturated Steaming 6-12 minutes at 102°C

Washing

After fixation not only thickener and auxiliaries, but also the unfixed dye should be removed. Careful attention should be given during each rising process so as not to generate cross staining. Conventional Washing

Cold Wash Warm wash Hot wash Soaping

Hot rinse Warm rinse Cold rinse

Washing

The higher the temperature the better the soaping effect.

THANK YOU FOR LISTENING…